The average cost of a benchmark ObamaCare plan is set to decrease next year in 15 major cities, according to a new study. The premium for the second-lowest-cost silver plan, which is used to determine tax credits, will go down by an average of about 1 percent, the Kaiser Family Foundation found. The changes for 2015 range from a 8.7 percent price increase in Tennessee to a 15.6 percent decrease in Denver. Each percentage represents the plan's change in cost before applying tax credits, which will help cushion the blow of most price hikes.
